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Hayward Universal Fit Pool Heaters Take the Guesswork Out of Choosing a Heater

The Hayward H-Series pool heaters are designed for universal application. Choose between left and right-side electric, water and gas connections and between 110v or 220v outlet compatibility and enjoy the ease of installing this heater for a new pool or an existing one.

Built with energy efficiency and ease of use in mind, this pool heater utilizes the newest technology, including 84% thermal efficiency. The digital LED control panel gives a digital temperature readout and status indicator for faster troubleshooting. A forced draft system keeps air moving through the combustion chamber at an exact flow rate, eliminating variable conditions usually created by external wind, weather and extreme temperatures. The Hayward heat exchangers are made of a durable Cupro Nickel, greatly increasing longevity. The features and quality construction of the heater makes it an easy option to choose.

Available in outputs from 150,000 to 500,000 BTU for propane or natural gas

Multiple model sizes available to fit any pool size and temperature requirement

One-year warranty

Available in propane and natural gas

For residential use only.Click here
for ASME-certified commercial pool heaters.

Item ships in 7-10 days

Free lift gate service included

Rated 4 out of
5 by
Mac1 from
Great Pool HeaterBought this pool in early June 2017 but did not start using till July 2017. My pool is 8,500 gallons and is an Intex Ultra Frame. It heats my pool very quickly, even on days when it is 59 degrees. I chose a natural gas heater because in Colorado the temperature can easily dip down into the 50's at night and I wanted to be able to use it longer into the Fall than I felt a heat pump would accommodate. I gave it 4 stars because of the gassy smell it has, which I am told is the Mercaptan they put in gas so you can smell a leak if it occurs. I also found it very interesting to configure the connections for the pump due to the size of the inlet and exit nipples from the heater.

Date published: 2017-08-01

Rated 5 out of
5 by
Dan00 from
Excellent ProductI bought this to replace a 15 year old Hayward heater. Installation was very straight forward, and I really like the auto ignition. I hope this heater lasts 15 years!!

Date published: 2017-06-25

Rated 5 out of
5 by
Kman from
Easy installationThe hardest part is uncrating the unit. Easy hook-up. Fired right up and runs much efficient than the old mini-volt units.

Date published: 2017-06-23

Rated 5 out of
5 by
Alemcram4 from
Heats quicklyI bought this 2 weeks ago and it was at my house in less than a week! Once it was installed it works great!

Date published: 2017-05-29

Rated 5 out of
5 by
Mrjoe from
I couldn't be happier.Easy to install. Heated my pool up in half the time as my previous heater. Big improvement. Even the quality of construction and accessibility of all the componants is much better. Looks great too. Low profile non-intrusive.

Date published: 2016-10-17

Rated 5 out of
5 by
Sarge from
Wife pleaserWe bought this heater for my wife who has wanted on for quite some time. She is very pleased with the heater and the warm pool she now enjoys, (me too).
I have been very pleased with everything I've bought through In The Swim. One of the best internet companies to deal with. Also, they have very competitive prices.

Date published: 2016-07-31

Rated 5 out of
5 by
Hayden at Shylo from
Great little unit!So far this is working great. We had an old Lairs light and this way more efficient and looks better, and was easy to install!

Date published: 2016-06-20

Rated 5 out of
5 by
technog33k from
Got the 250K BTU, Easy to Install and operateThis heater is much lighter than my old one. It was very easy to rotate the heat exchanger since my pool pump is on the left. It took me about 3 hours to install, since this is the first time doing it myself. I wired it up as 110volt ac. My pool water was 65 degrees and within a couple of hours it was up to 85 degrees. So far we are very happy with it and hope it lasts as long as my old one which was 14 years,

Independent left or right side electric, water and gas connections plus 2 x 2 1/2 in.CPVC union connections to provide the ultimate installation flexibility for new or existing equipment pads.

Forced draft system that constantly moves air through the combustion chamber at a precise flow rate. As a result, all outside weather variables that can affect the heating performance, such as wind conditions, are eliminated - without having to install a high-wind stack.

What size heater do I need?

- A 250,000 BTU heater will heat a pool with a surface area of 750 square feet. You can safely go up one to two sizes unless you are replacing an existing heater. If replacing an existing heater you are limited by the diameter of the existing gas supply pipe. The gas pipe is sized according to BTU’S. Installing a heater larger than the pipe will result in a sporadic or non-operating heater.

Are the headers reversible?

- Yes, the headers are located on the right side of the heater and can be switched to the left side.

How big is the heater?

- 28 in. wide, 29 1/2 in. deep, 24 in. high. - Weight 180 lbs.

Can I install the heater myself?

- The heater should be installed by a professional technician.

Oversized Delivery Information

This product is too large to be shipped through UPS, Federal Express or the Post Office. The estimated delivery time is between 7 and 10 business days. If you order this product, you will be contacted by the shipper within 24 hours of the scheduled delivery to set up an appointment for your merchandise.

Note: Refusal of delivery on an oversized item will be subject to shipping and/or restocking fees.

Important! Someone must be at the delivery location to receive these items, as they require a signature for delivery. You will be required to assist in moving the packages from the truck at the time of delivery.